APRILIA Rear sprocket for Aprilia Dorsoduro 900 2017-2020 MJ Corse MJ.500 €53.05 High quality duraluminium (ergal) rear sprocket for Aprilia Dorsoduro 900 2017-2020 with chain pitch 525 and with number of teeth from 36 to 46. Select the chain pitch and number of teeth you need by clicking below. Add to cart